CFD Use around an Aircraft Airfoil

The following picture shows the vector field occurring around an aircraft airfoil during landing, it is essential to see how the vector fields speed up and where they decrease to sustain the regions of high pressure at the bottom half of the airfoil and the regions of low pressure over the wing profile.

The following picture shows the use of the airfoil, and simulating the conditions of pressure occurring around an aircraft wind profile.

This is an excellent picture showing airfoil extensions used to increases lift during landing, its purpose is visible and how they can contribute to manipulate flows in order to increase lift during critical flight regimes.

Flow Simulation Around an Airfoil

The power of numerical simulations shown in the following movie

Deploying a Spoiler in a Simulation

An excellent simulation showing the power of CFD.

Airfoil Anatomy

The following picture shows the regions occurring on the upper surface and the regions occurring on the bottom surface, in addition to the airfoil camber line.

Airfoil thickness is illustrated in the following picture

More detailed image showing airfoil terminology, just to note the image is not done by me

Two nice pictures taken while on flight on a DC-9, thought of sharing the photos

A funny comparison case between two types of airfoils one that is symmetrical in accordance with its camber line and the other which is not, note image not done by me.

If the velocity component on the upper surface of the airfoil is the same as the lower surface this causes the elimination of the velocity vector causing no life to be generated.

NACA airfoil

http://en.wikipedia.org/wiki/NACA_airfoil

Aircraft Online Airfoil Database

During your modeling or design process an airfoil profile is needed, from the provided data base from the following links: